(CNN)Russian authorities say the death toll from a mine disaster has risen to 36 after an explosion during an attempt to rescue trapped miners Sunday, according to state-run news agency RIA Novosti.

In its wake, Russia's Emergency Situations Minister Vladimir Puchkov told reporters that there was virtually no chance of survival for any of the 26 miners who had been trapped since Thursday in the Severnaya coal mine in the city of Vorkuta.